CVE-2015-2752: Input Validation
First published: Wed Apr 01 2015(Updated: )
The XEN_DOMCTL_memory_mapping hypercall in Xen 3.2.x through 4.5.x, when using a PCI passthrough device, is not preemptible, which allows local x86 HVM domain users to cause a denial of service (host CPU consumption) via a crafted request to the device model (qemu-dm).
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Fedora | =20 | |
| Fedora | =21 | |
| Xen XAPI | =4.3.0 | |
| Xen XAPI | =4.3.1 | |
| Xen XAPI | =4.3.2 | |
| Xen XAPI | =4.4.0 | |
| Xen XAPI | =4.4.1 | |
| Xen XAPI | =4.5.0 |
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Reference Links
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154574.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154579.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155198.html
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html
- http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00018.html
- http://www.securityfocus.com/bid/73448
- http://www.securitytracker.com/id/1031994
- http://xenbits.xen.org/xsa/advisory-125.html
- https://security.gentoo.org/glsa/201504-04
Frequently Asked Questions
What is the severity of CVE-2015-2752?
CVE-2015-2752 is classified as a medium severity vulnerability, as it can lead to denial of service through excessive CPU consumption.
How do I fix CVE-2015-2752?
To fix CVE-2015-2752, update to a patched version of Xen or Fedora that addresses the vulnerability.
What types of systems are affected by CVE-2015-2752?
CVE-2015-2752 affects Xen versions from 3.2.x through 4.5.x specifically when using PCI passthrough devices.
What exploitation method is used for CVE-2015-2752?
CVE-2015-2752 can be exploited by local x86 HVM domain users sending crafted requests to the device model.
Can CVE-2015-2752 impact the host system?
Yes, CVE-2015-2752 can impact the host system by causing increased CPU consumption leading to a denial of service.
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/references
- agent/weakness
- agent/remedy
- agent/severity
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- agent/description
- agent/event
- agent/first-publish-date
- agent/source
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/fedoraproject
- canonical/fedora
- version/fedora/20
- version/fedora/21
- vendor/xen
- canonical/xen xapi
- version/xen xapi/4.3.0
- version/xen xapi/4.3.1
- version/xen xapi/4.3.2
- version/xen xapi/4.4.0
- version/xen xapi/4.4.1
- version/xen xapi/4.5.0